15min:

M. JACOBSON, Department of Chemistry, Columbia University, New York, NY 10027; Z. DUAN, M. SILVA AND R. W. FIELD, Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139.

Analysis of the Dispersed Fluorescence spectra of Acetylene Isotopomers (¹²C₂H₂, ¹³C₂H₂, ¹²C₂HD) has continued to provide information about the structure and dynamics on both the X state and A state potential surfaces. Sampling of specific regions of the potential surfaces is a consequence of the different integer multiple ratios among the fundamental vibrational frequencies of the different isotopomers. Insights from these studies are summarized.